Related Experiment Video
Updated: Feb 8, 2026

Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study
Published on: August 15, 2016
Hydroxypropyl-β-Cyclodextrin and β-Cyclodextrin as Tablet Fillers for Direct Compression
Jaime Conceição1, Oluwatomide Adeoye2,3, Helena Maria Cabral-Marques2
1UCIBIO-ReQuimTe, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, n.° 228, 4050-313 Oporto, Porto, Portugal. jmgmconceicao@ff.up.pt.
Hydroxypropyl-β-cyclodextrin and β-cyclodextrin show potential as direct compression tablet fillers. Hydroxypropyl-β-cyclodextrin offers superior compression properties and improved drug release compared to β-cyclodextrin, making it a viable alternative to lactose.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
Background:
- Cyclodextrins are versatile cyclic carbohydrates utilized as excipients in drug delivery.
- Their application as direct compression fillers requires thorough evaluation of physical and chemical properties.
Purpose of the Study:
- To assess the suitability of hydroxypropyl-β-cyclodextrin and β-cyclodextrin as tablet fillers for direct compression.
- To compare their performance against common pharmaceutical excipients.
Main Methods:
- Evaluation of flow properties (angle of repose, flow time, Carr index, Hausner ratio).
- Assessment of compaction behavior (energies, forces, plasticity index, lubrication efficiency).
- Analysis of carbamazepine release characteristics (dissolution rate, disintegration time).
Main Results:
- Both cyclodextrins demonstrated utility as direct compression fillers.
- Hydroxypropyl-β-cyclodextrin exhibited enhanced compression physics and superior drug release profiles over β-cyclodextrin.
- Lactose monohydrate and hydroxypropyl-β-cyclodextrin yielded the most favorable outcomes.
Conclusions:
- Cyclodextrins are effective tablet fillers for direct compression.
- Hydroxypropyl-β-cyclodextrin is a promising alternative to lactose, especially for lactose-intolerant patients, despite higher costs.
- The study highlights the potential of cyclodextrins in pharmaceutical formulations.
Related Concept Videos
TGF - β Signaling Pathway
Adrenergic Receptors: β Subtype
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
Antianginal Drugs: Nitrates and β-Blockers
Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow....
Antihypertensive Drugs: Types of β-Blockers
Heart Failure Drugs: β-Blockers
Esters to β-Ketoesters: Claisen Condensation Overview

